4U 1820-30 as a potential test of the nonsymmetric gravitational theory of Moffat

Details 4U 1820-30 as a potential test of the nonsymmetric gravitational theory of Moffat 4U 1820-30 as a potential test of the nonsymmetric gravitational theory of Moffat

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320l..47k&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 320, Sept. 1, 1987, p. L47-L50.

Astronomy and Astrophysics

Astrophysics

5

Stellar Gravitation, Stellar Luminosity, X Ray Binaries, Exosat Satellite, Neutron Stars

Scientific paper

Recent observations of the X-ray burst source 4U 1820-30 have revealed a 685 s modulation of the luminosity. The author discusses how this system could provide a stringent test of the nonsymmetric gravitational theory (NGT) of Moffat, provided the observed periodicity is due to orbital motion of a binary system. The possible orbital period change predicted by general relativity may be detectable in this system.

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